ScientificNotationTest.java

package com.jayway.jsonpath;

import com.google.gson.JsonArray;
import org.junit.Test;

import java.util.List;

import static com.jayway.jsonpath.JsonPath.using;
import static org.assertj.core.api.Assertions.assertThat;

//test for issue: https://github.com/json-path/JsonPath/issues/590
public class ScientificNotationTest extends BaseTest {

    final String sci_rep_array = "{\"num_array\": [" +
            "{\"num\":1}," +
            "{\"num\":-1e-10}," +
            "{\"num\":0.1e10},"+
            "{\"num\":2E-20}," +
            "{\"num\":-0.2E20}" +
            " ]}";

    @Test
    public void testScientificNotation() {
        List<JsonArray> result = using(Configuration.defaultConfiguration())
                .parse(sci_rep_array)
                .read("$.num_array[?(@.num == 1 || @.num == -1e-10 || @.num == 0.1e10 || @.num == 2E-20 || @.num == -0.2E20)]");

        assertThat(result.toString()).isEqualTo("[{\"num\":1},{\"num\":-1.0E-10},{\"num\":1.0E9},{\"num\":2.0E-20},{\"num\":-2.0E19}]");
    }
    @Test
    public void testScientificNotation_lt_gt() {
        List<JsonArray> result;
        result = using(Configuration.defaultConfiguration())
                .parse(sci_rep_array)
                .read("$.num_array[?(@.num > -0.0E0)]");

        assertThat(result.toString()).isEqualTo("[{\"num\":1},{\"num\":1.0E9},{\"num\":2.0E-20}]");

        result = using(Configuration.defaultConfiguration())
                .parse(sci_rep_array)
                .read("$.num_array[?(@.num < -0.0E0)]");

        assertThat(result.toString()).isEqualTo("[{\"num\":-1.0E-10},{\"num\":-2.0E19}]");

    }

}